/*
* libtcod 1.4.1
* Copyright (c) 2008,2009 J.C.Wilk
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*     * Redistributions of source code must retain the above copyright
*       notice, this list of conditions and the following disclaimer.
*     * Redistributions in binary form must reproduce the above copyright
*       notice, this list of conditions and the following disclaimer in the
*       documentation and/or other materials provided with the distribution.
*     * The name of J.C.Wilk may not be used to endorse or promote products
*       derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY J.C.WILK ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL J.C.WILK BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/

#ifndef _TCOD_BSP_H
#define _TCOD_BSP_H

typedef struct {
	TCOD_tree_t tree; /* pseudo oop : bsp inherit tree */
	int x,y,w,h; /* node position & size */
	int position; /* position of splitting */
	uint8 level; /* level in the tree */
	bool horizontal; /* horizontal splitting ? */
} TCOD_bsp_t;

typedef bool (*TCOD_bsp_callback_t)(TCOD_bsp_t *node, void *userData);

TCODLIB_API TCOD_bsp_t *TCOD_bsp_new();
TCODLIB_API TCOD_bsp_t *TCOD_bsp_new_with_size(int x,int y,int w, int h);
TCODLIB_API void TCOD_bsp_delete(TCOD_bsp_t *node);

TCODLIB_API TCOD_bsp_t * TCOD_bsp_left(TCOD_bsp_t *node);
TCODLIB_API TCOD_bsp_t * TCOD_bsp_right(TCOD_bsp_t *node);
TCODLIB_API TCOD_bsp_t * TCOD_bsp_father(TCOD_bsp_t *node);

TCODLIB_API bool TCOD_bsp_is_leaf(TCOD_bsp_t *node);
TCODLIB_API bool TCOD_bsp_traverse_pre_order(TCOD_bsp_t *node, TCOD_bsp_callback_t listener, void *userData);
TCODLIB_API bool TCOD_bsp_traverse_in_order(TCOD_bsp_t *node, TCOD_bsp_callback_t listener, void *userData);
TCODLIB_API bool TCOD_bsp_traverse_post_order(TCOD_bsp_t *node, TCOD_bsp_callback_t listener, void *userData);
TCODLIB_API bool TCOD_bsp_traverse_level_order(TCOD_bsp_t *node, TCOD_bsp_callback_t listener, void *userData);
TCODLIB_API bool TCOD_bsp_traverse_inverted_level_order(TCOD_bsp_t *node, TCOD_bsp_callback_t listener, void *userData);
TCODLIB_API bool TCOD_bsp_contains(TCOD_bsp_t *node, int x, int y);
TCODLIB_API TCOD_bsp_t * TCOD_bsp_find_node(TCOD_bsp_t *node, int x, int y);
TCODLIB_API void TCOD_bsp_resize(TCOD_bsp_t *node, int x,int y, int w, int h);
TCODLIB_API void TCOD_bsp_split_once(TCOD_bsp_t *node, bool horizontal, int position);
TCODLIB_API void TCOD_bsp_split_recursive(TCOD_bsp_t *node, TCOD_random_t randomizer, int nb, 
		int minHSize, int minVSize, float maxHRatio, float maxVRatio);
TCODLIB_API void TCOD_bsp_remove_sons(TCOD_bsp_t *node);

#endif
